ASTM C1287-2018 Standard Test Method for Determination of Impurities in Nuclear Grade Uranium Compounds by Inductively Coupled Plasma Mass Spectrometry《电感耦合等离子体质谱法测定核级铀化合物中杂质的标准试验方.pdf
《ASTM C1287-2018 Standard Test Method for Determination of Impurities in Nuclear Grade Uranium Compounds by Inductively Coupled Plasma Mass Spectrometry《电感耦合等离子体质谱法测定核级铀化合物中杂质的标准试验方.pdf》由会员分享,可在线阅读,更多相关《ASTM C1287-2018 Standard Test Method for Determination of Impurities in Nuclear Grade Uranium Compounds by Inductively Coupled Plasma Mass Spectrometry《电感耦合等离子体质谱法测定核级铀化合物中杂质的标准试验方.pdf(13页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: C1287 10C1287 18Standard Test Method forDetermination of Impurities in Nuclear Grade UraniumCompounds by Inductively Coupled Plasma MassSpectrometry1This standard is issued under the fixed designation C1287; the number immediately following the designation indicates the year oforiginal
2、adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers the determination of 67 elements in uranium
3、dioxide samples and nuclear grade uraniumcompounds and solutions without matrix separation by inductively coupled plasma mass spectrometry (ICP-MS). The elements arelisted in Table 1. These elements can also be determined in uranyl nitrate hexahydrate (UNH), uranium hexafluoride (UF6),triuranium oct
4、oxide (U3O8) and uranium trioxide (UO3) if these compounds are treated and converted to the same uraniumconcentration solution.1.2 The elements boron, sodium, silicon, phosphorus, potassium, calcium and iron can be determined using different techniques.The analysts instrumentation will determine whi
5、ch procedure is chosen for the analysis.1.3 The test method for technetium-99 is given in Annex A1.1.4 The values stated in SI units are to be regarded as standard.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof th
6、e user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and determine theapplicability of regulatory limitations prior to use. WarningThe ICP-MS is a source of intense ultra-violet radiation from theradio frequency induced plasma. Protection from rad
7、io frequency radiation and UV radiation is provided by the instrument undernormal operation.1.6 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standard
8、s, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C753 Specification for Nuclear-Grade, Sinterable Uranium Dioxide PowderC776 Specification for Sintered Uranium Dioxide Pellets for Light Water Re
9、actorsC787 Specification for Uranium Hexafluoride for EnrichmentC788 Specification for Nuclear-Grade Uranyl Nitrate Solution or CrystalsC859 Terminology Relating to Nuclear MaterialsC967 Specification for Uranium Ore ConcentrateC996 Specification for Uranium Hexafluoride Enriched to Less Than 5 % 23
10、5UC1346 Practice for Dissolution of UF6 from P-10 TubesC1347 Practice for Preparation and Dissolution of Uranium Materials for AnalysisD1193 Specification for Reagent Water3. Terminology3.1 Definitions:3.1.1 For definitions of terms relating to the nuclear fuel cycle, refer to Terminology C859.1 Thi
11、s test method is under the jurisdiction of ASTM Committee C26 on Nuclear Fuel Cycle and is the direct responsibility of Subcommittee C26.05 on Methods of Test.Current edition approved June 1, 2010Jan. 1, 2018. Published July 2010January 2018. Originally approved in 1994. Last previous edition approv
12、ed in 20032010 asC1287 03.C1287 10. DOI: 10.1520/C1287-10.10.1520/C1287-18.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the
13、 ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users con
14、sult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14. Summary of Test Method4.1 The s
15、ample is dissolved in acid if it is not already a solution. A fixed quantity of internal standard is added to monitor andcorrect for signal instability. The level of impurities in the solution is measured by ICP-MS. Customized software calculates theconcentration of each element.4.2 Uranium-concentr
16、ation-matched standard solutions are used to calibrate the ICP-MS instrument. The calibration is linear upto at least 0.2 g/mlg/mL (100 g/g U) for each analyte.3,44.3 Microwave dissolution may be used as an alternate dissolution method.5. Significance and Use5.1 This test method is capable of measur
17、ing the elements listed in Table 1, some of which are required by Specifications C753,C776, C787, C788, C967 and C996.6. Apparatus6.1 ICP-MS, controlled by computer and fitted with the associated software and peripherals. May be fitted with cold plasmaoption. Current instrumentation is available wit
18、h dynamic reaction cell or collision cell options.6.2 Autosampler, with tube racks and disposable plastic sample tubes compatible with 5.16.1 (optional).6.3 Variable Micropipettes:6.3.1 10 L to 100 L capacity.6.3.2 100 L to 1000 L capacity.6.3.3 1000 L to 10.00 mL capacity.6.4 Volumetric Flasks:6.4.
19、1 50 mL capacitypolypropylene.6.4.2 100 mL capacitypolypropylene.6.4.3 1 L capacityglass.6.5 Platinum Dish100 mL capacity.6.6 Silica Beaker250 mL capacity.6.7 Watch Glasses75 mm diameter.6.8 Polypropylene Tubes50 mL, with graduation marks and with caps.7. Reagents7.1 The sensitivity of the ICP-MS te
20、chnique requires the use of ultra high purity reagents in order to be able to obtain the lowlevels of detection. All the reagents below are ultra high purity grade unless otherwise stated:7.1.1 Element stock standards at 1000 g/mL for all the elements in Table 1.7.1.2 Hydrofluoric Acid (HF), (40 g/1
21、00 g), 23 molar.7.1.2.1 WarningHydrofluoric acid is a highly corrosive acid that can severely burn skin, eyes, and mucous membranes.Hydrofluoric acid is similar to other acids in that the initial extent of a burn depends on the concentration, the temperature, andthe duration of contact with the acid
22、. Hydrofluoric acid differs from other acids because the fluoride ion readily penetrates the skin,causing destruction of deep tissue layers. Unlike other acids that are rapidly neutralized, hydrofluoric acid reactions with tissue maycontinue for days if left untreated. Due to the serious consequence
23、s of hydrofluoric acid burns, prevention of exposure or injuryof personnel is the primary goal. Utilization of appropriate laboratory controls (hoods) and wearing adequate personnel protectiveequipment to protect from skin and eye contact is essential. Acute exposure to HF can cause painful and seve
24、re burns upon skincontact that require special medical attention. Chronic or prolonged exposure to low levels on the skin may causefluorosis.Familiarization and compliance with the Safety Data Sheet is essential.7.1.3 Nitric AcidConcentrated nitric acid (HNO3), 15 molar.7.1.4 Rhodium Stock Solution
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